Krampus is a mythical creature recognized in Alpine countries. According to legend, Krampus accompanies St. Nicholas (Santa Claus) during the Christmas season, warning and punishing bad children, in contrast to St. Nicholas, who gives gifts to good children. When the Krampus finds a particularly naughty child, it stuffs the child in its sack and carries the frightened child away to its lair, presumably to devour for its Christmas dinner.

In the Alpine regions, Krampus is represented as a beast like creature, generally demonic in appearance. The creature has roots in Germanic folklore. Traditionally young men dress up as the Krampus in Austria, southern Bavaria, South Tyrol, and Hungary during the first week of December, particularly on the evening of 5 December, and roam the streets frightening children with rusty chains and bells. Krampus is featured on holiday greeting cards called Krampuskarten. There are many names for Krampus, as well as many regional variations in portrayal and celebration.